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In a right circular cone, the cross-section made by a plane parallel to the base is a

(A) circle                                                         (B) frustum of a cone

(C) sphere                                                       (D) hemisphere

Answers (1)

According to the question if a right circular cone is cut by a plane parallel to its base the figure formed is

            Here BECD is not a circle, not a sphere not a hemisphere but it is a frustum of a cone.

            Hence in a right circular cone, the cross-section made by a plane parallel to the base is a frustum of a cone.

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